30results about How to "Excellent liquid stability" patented technology

In order to obtain such a liquid crystal thin film having optical anisotropy that suffers less change in optical characteristics thereof under heating to 200° C., the following polymerizable liquid crystal composition is provided as a raw material therefor. The composition contains Compound (1) and at least one of Compound (2) and Compound (3), with a proportion of Compound (1) being from 50 to 99% by weight, a proportion of Compound (2) being from 0 to 50% by weight, and a proportion of Compound (3) being from 0 to 50% by weight:wherein R is alkyl; each of W1 and W2 is independently hydrogen, chlorine, fluorine or —CH3; each of W3 and W4 is independently hydrogen, chlorine, fluorine, —CH3 or —CF3; W5 is alkyl having, alkoxy, chlorine, fluorine, —CN or —OCF3; X is a single bond, —CH═CH— or —CH2CH2—; Z is a single bond, —COO—, —OCO— or —CH2CH2—; and q is an integer of from 1 to 20.

Disclosed is a coating liquid for producing an electrophotographic photosensitive body, which is excellent in electrical characteristics and mechanical durability, while being excellent in coatability and liquid stability. Also disclosed are an electrophotographic photosensitive body produced by using such a coating liquid, an image-forming device comprising such an electrophotographic photosensitive body, and an electrophotographic photosensitive body cartridge. Specifically disclosed is a coating liquid for producing an electrophotographic photosensitive body, which is characterized by containing a copolymerized polycarbonate resin and asolvent A having a boiling point of not less than 80 DEG C but not more than 150 DEG C. The copolymerized polycarbonate resin has a repeating unit represented by the formula (1) below, while containing not more than 10% by weight of a repeating unit having a biphenyl structure. The average of repetitions of the unit represented by the formula (1) is not more than 10.

The present invention provides a curable composition, comprising: a (meth)acrylate urethane compound derived from a polypropylene glycol or a propyleneoxide ethyleneoxide copolymer glycol having a molecular weight between 1,000 and 13,000 and an amount of unsaturation less than 0.01 meq / g. The liquid curable resin composition of the present invention has improved liquid stability and can produce cured products having superior mechanical characteristics by polymerization. The composition further comprises preferably a primary or secondary amine. The liquid curable resin composition can be used as a coating material for optical fibers, adhesives, and the like. The composition is particularly suitable as a coating material for optical fibers for which long-term stability is required.

A composition includes at least one of particles having an average primary particle diameter of 50 to 150 nm or particles having an average major axis length of 50 to 150 nm, and a resin, in which the composition has an L* in an L*a*b* color space of CIE 1976 of 35 to 75 in a case of forming a film with a thickness of 3 μm using the composition. A film; a cured film; an optical sensor; and a method for producing a film each use the composition.

The invention provides a thermosetting urethane elastomer composition which is excellent in the liquid stability of its hardener and is capable of manufacturing a paper feeding roll excellent in the mechanical properties and surface characteristics. The composition consists of (A) the chief agent containing an NCO group-terminated urethane prepolymer obtained by the reaction of an MDI (diphenylmethane diisocyanate)-based isocyanate and PTMG (polyoxytetramethylene glycol), having an NCO content of 5-15% and a viscosity at 75[deg.]C of 1,000 mm<SP>2< / SP> / s or less and of (B) a hardener containing (B1) a long chain diol comprising PTMG, (B2) a short chain diol containing 2-methyl-1,3-propanediol in a proportion of more than 50% by mass, (B3) a short-chain triol comprising the essential component of TMP (trimethylolpropane), (B4) a catalyst comprising DMI (1,2-dimethylimidazole) and (B5) a temperature-sensitive catalyst comprising a bicyclic tertiary diamine (salt), with a ratio of [(B1) / [(B2)+(B3)]] being 80 / 20-95 / 5 (by mass) and with a ratio of [(B2) / (B3)] being 55 / 45-95 / 5 (by mass).

A liquid-alloy temperature carrier used in thermometer of mercury free type is featured as applying low melting point of Ga-In-Sn-K-Na-Li alloy as stabilized liquid temperature carrier at temperature of 5-42DEG C; preparing said alloy by wt% as Ga of 65-80, In of 3-20,Sn of 1-15, Na and K of 0.001-5 and Li of 2.0; applying Na-K weight ratio as 21.6:78.4. The method for preparing said thermometer is also disclosed.

The object is to provide an electroless gold plating liquid which has an adequate deposition speed for practical use without containing any thallium or other heavy metal ions, excellent stability of the plating liquid and contains a non-cyanide gold salt as a gold salt, an alkali metal salt or an ammonium salt of sulfurous acid and thiosulfuric acid as a metal complexing agent, a hydroxyalkylsulfonic acid or a salt thereof represented by the following general formula as a reducing agent, and an amine compound,wherein R represents hydrogen, a carboxyl group, or any of a phenyl group, a tolyl group, a naphthyl group, a saturated or unsaturated alkyl group, an acetyl group, an acetonyl group, a pyridyl group and a furyl group which may have a substitutional group, X represents any of hydrogen, Na, K, and NH4, and n is an integer between 0 and 4.